<template>
  <div class="outer">
    <!-- 三级分类导航 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <span>全部结果</span>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 三级分类名称面包屑 -->
            <li v-show="searchParams.categoryName" class="with-x">
              {{ searchParams.categoryName }}
              <i @click="removeCategoryName">×</i>
            </li>

            <!-- 关键字面包屑 -->
            <li v-show="searchParams.keyword" class="with-x">
              {{ searchParams.keyword }}
              <i @click="removeKeyword">×</i>
            </li>

            <!-- 品牌面包屑 -->
            <li v-show="searchParams.trademark" class="with-x">
              {{ showTrademark }}
              <i @click="removeTrade">×</i>
            </li>

            <!-- 属性面包屑 -->
            <li
              v-for="(p, index) in searchParams.props"
              :key="index"
              class="with-x"
            >
              <!-- {{ showAttr(p) }} -->
              {{ p | showAttr }}
              <i @click="removeAttr(index)">×</i>
            </li>
          </ul>
        </div>

        <!-- 搜索器 -->
        <SearchSelector  v-if="goods.total"   @saveTrademark="getTrade" @saveAttr="getAttr" />

        <!--商品展示区-->
        <div class="details clearfix"  v-if="goods.total">
          <!-- 列表操作区 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class="orderType == 1 ?'active' : '' " @click="changeOrder(1)">
                  <a >综合
                    <span v-show="orderType == 1" class="iconfont" 
                    :class="orderFlagName"></span>
                  </a>
                </li>

                <li :class="orderType == 2 ?'active' : ''" @click="changeOrder(2)">
                  <a>价格
                    <span  v-show="orderType == 2" 
                    class="iconfont"
                    :class="orderFlagName"  
                    ></span></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li v-for="g in goods.goodsList" :key="g.id" class="yui3-u-1-5">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${g.id}`"
                      >
                      <img :title="g.title" :alt="g.title" v-lazy="g.defaultImg"
                    /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ g.price }}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <router-link :to="`/detail/${g.id}`" :title="g.title" v-html="g.title"></router-link>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination 
              :total="goods.total" 
              :pageNo="searchParams.pageNo" 
              :pageSize="searchParams.pageSize" 
              :changePageNo="savePageNo"
          />
          <!-- 分页器 -->
        </div>

        <!-- 商品为空的提示 -->
        <div class="empty"   v-if="!goods.total" >
          <img src="https://static.360buyimg.com/devfe/error-new/1.0.0/css/i/error_06.png" alt="">
          <h1>抱歉，搜索结果为空</h1>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector";
import { mapState } from "vuex";
export default {
  name: "Search",
  computed: {
    ...mapState("search", ["goods"]),
    // 处理 品牌名展示
    showTrademark() {
      return this.searchParams.trademark.split(":")[1];
    },
    //处理 排序的类型
    orderType(){
      return this.searchParams.order.split(':')[0];
    },
    // 处理排序 的 箭头名称
    orderFlagName(){
      return this.searchParams.order.split(':')[1]  ==='desc'  ? 'icon-jiantou_xiangxia' : 'icon-jiantou_xiangshang'
    }
  },
  data() {
    return {
      searchParams: {
        category1Id: "", //一级分类 ID
        category2Id: "", // 二级分类 ID
        category3Id: "", //三级分类 ID
        categoryName: "", // 分类名字
        keyword: "", //搜索关键字
        props: [], // 商品属性的数组
        trademark: "", //品牌
        order: "1:desc", // 排序方式
        pageNo: 1, // 当前页码
        pageSize: 5, //每页展示数量
      },
    };
  },
  components: {
    SearchSelector,
  },

  methods: {
    //清除 分类名称
    removeCategoryName() {
      // 1. 清空 searchParams.categoryName 数据
      // 2. 去掉 query 参数中的 categray?ID  和 categoryName，保留 keyword
      // 3. 重新发送请求

      //保留 keyword 关键字
      let { keyword } = this.$route.query;

      //重新跳转search,只传递keyword参数，利用 watch 监听，发送请求
      this.$router.push({
        path: "/search",
        query: {
          keyword,
        },
      });
    },
    //清除 关键字
    removeKeyword() {
     
      // 2. 清除地址栏 keyword
      // 3. 清除输入框 值
      // 4. 重新发送请求
      let { query } = this.$route;

      // console.log(this);

      //  1. 跳转
      this.$router.push({
        path: "/search",
        query: {
          ...query,
          keyword: undefined,
        },
      });

      //触发全局 事件总线
      this.$bus.$emit("getkeyword");
    },
    //保存获取  品牌数据
    getTrade(value) {
      //保存 品牌
      this.searchParams.trademark = value.tmId + ":" + value.tmName;
      //重置 当前页码
      this.searchParams.pageNo = 1;
     
    },
    // 清除 品牌
    removeTrade() {
      //清除 searchParams 数据
      this.searchParams.trademark = "";
      
       //重置 当前页码
       this.searchParams.pageNo = 1;

    },
    //获取 商品属性
    getAttr(attr, value) {
      // console.log(attr,value);
      // 单个商品属性的数据
      let a = attr.attrId + ":" + value + ":" + attr.attrName;

      // let arr = new Set(this.searchParams.props);
      // 向 searchParams.props  追加元素

      //判断是否存在数据
      if (!this.searchParams.props.includes(a)) {
        this.searchParams.props.push(a);
         //重置 当前页码
        this.searchParams.pageNo = 1;
      
      }
    },
    //处理 属性名
    showAttr(p) {
      return p.split(":")[2] + ":" + p.split(":")[1];
    },
    //清除 属性
    removeAttr(index){
      //响应式删除数组中的某个元素
      this.searchParams.props.splice(index,1);
       //重置 当前页码
       this.searchParams.pageNo = 1;
      

    },
    //获取分页组件的页码
    savePageNo(value){
      this.searchParams.pageNo = value;
      

    },
    // 修改排序
    changeOrder(type){
        // 获取当前的order 数据
        let [currentType,currentFlag] = this.searchParams.order.split(":");
        // 当点击的 类型 和现在的类型一致时
        if(currentType == type){
            //类型不动，只改变  排序的标识。
            let flag = currentFlag === "desc" ? "asc" : "desc";
            //重新赋值  searchParams
            this.searchParams.order = type + ":" + flag;
        }else{
           // 当点击的 类型 和现在的类型不一致时
           //重新赋值  searchParams
           this.searchParams.order = type + ":desc";
        }
        //重置页码为1 
        this.searchParams.pageNo = 1;
    }
  },
  watch: {
    $route: {
      immediate: true,
      handler(value) {
        //存储 data 数据
        this.searchParams = Object.assign(
          this.searchParams,
          {
            category1Id: "", //一级分类 ID
            category2Id: "", // 二级分类 ID
            category3Id: "", //三级分类 ID
            categoryName: "", // 分类名字
            keyword: "", //搜索关键字
            pageNo:1,   //重置 当前页码
          },
          value.query
        );

        //调用 store 中的 actions 方法，请求数据
        this.$store.dispatch("search/getGoodsList", this.searchParams);
      },
    },
    searchParams:{
      deep:true,
      handler(){
          //调用 store 中的 actions 方法，请求数据
          this.$store.dispatch("search/getGoodsList", this.searchParams);
      }
    }
  },
  filters: {
    //过滤器 处理 商品属性展示
    showAttr(p) {
      return p.split(":")[2] + ":" + p.split(":")[1];
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                  &:hover {
                    color: #e1251b;
                  }
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }

    .empty{
      text-align: center;
      h1{
        color: rgb(165, 162, 162);
      }
    }
  }
}
</style>